Medications

How to give anticoagulants safely

Other platforms explain it with text and video. In VMS you practice it on the patient.

MD / DOPANursing (NCLEX)
Practice it in VR with Blocky

Anticoagulants prevent and treat clots but can cause serious bleeding. Following protocols, checking labs and teaching patients lowers that risk.

Step by step

  1. Check the labs

    Review INR for warfarin, aPTT or anti-Xa for heparin infusions, platelet count, and kidney function for enoxaparin and direct oral anticoagulants. [1]

  2. Use the protocol

    Follow approved weight-based protocols for heparin. Have a second nurse independently check doses and pump settings. [2]

  3. Inject under the skin correctly

    Give heparin or enoxaparin in the abdomen at least 2 inches from the navel. Do not aspirate or rub, and leave the air bubble in prefilled enoxaparin syringes. [3]

  4. Watch for bleeding

    Check gums, urine, stool, bruising, drops in hemoglobin and new headache or confusion, which can mean bleeding in the brain. [1]

  5. Watch the platelets

    A platelet drop of about half after 5 to 10 days of heparin suggests heparin-induced thrombocytopenia. Stop heparin and tell the prescriber. [1]

  6. Know the reversal

    Vitamin K and prothrombin complex concentrate reverse warfarin, protamine reverses heparin, and specific agents reverse dabigatran and factor Xa inhibitors. [1]

  7. Teach the patient

    Teach bleeding signs, a soft toothbrush, no NSAIDs unless approved, and steady vitamin K intake with warfarin. Confirm with teach-back. [4]

Common errors

Practice it in VMS

In VMS you do this on the patient, not on paper: every step goes on the checklist with a score, and in Teach mode Blocky tells you what comes next.

VMS cases that train this skill

7 VMS cases train this skill: open the case library

Sources

  1. Open RN, Nursing Pharmacology 2e (CC BY 4.0)
  2. The Joint Commission, National Patient Safety Goals
  3. Open RN, Nursing Skills 2e (Chippewa Valley Technical College) (CC BY 4.0)
  4. AHRQ Health Literacy Universal Precautions Toolkit (Teach-Back)

Steps adapted from Open RN, Nursing Pharmacology 2e and Open RN, Nursing Skills 2e (Chippewa Valley Technical College), licensed under CC BY 4.0. VMS is not affiliated with these organizations. Updated: 2026-10-11.